Horde/IMP Deployments
<table class="horde-table">|| Company/Organisation || Users || Servers || Contact || Details |||| <a href="http://mail.sapo.pt/">SAPO Mail (Portuguese ISP)</a> || 1.65M Webmail users || 11 Webmail+imap proxy servers / 2 MySQL servers / 6 Dovecot IMAP servers (dual 3.0GHz Xeon P4, 4GB RAM) || [mailto:<a href="https://wiki.horde.org/mailto:my-first-name@co.sapo.pt">my-first-name@co.sapo.pt</a> Nuno Loureiro] || Running Horde/IMP/Turba/Kronolith/Ingo - Splitted from CVS HEAD on Oct 2003. Running Zend Platform. <a href="http://w2.mail.sapo.pt/screenshots/webmail_v2.jpg">Screenshot</a> |||| <a href="http://mail.sapo.pt/">SAPO Mail BETA (Portuguese ISP)</a> || 60,000 Webmail users and growing || 2  Webmail+imap proxy servers / 2 MySQL servers / 6 Dovecot IMAP servers (dual 3.0GHz Xeon P4, 4GB RAM) NOTE: All the backend servers (sql, imap, ..) are the same for Webmail and Webmail Beta (see previous entry) || [mailto:<a href="https://wiki.horde.org/mailto:my-first-name@co.sapo.pt">my-first-name@co.sapo.pt</a> Nuno Loureiro] || Running Horde/DIMP/Turba/Kronolith/Ingo - CVS HEAD! Running Zend Platform. <a href="http://w2.mail.sapo.pt/screenshots/webmail_v3.jpg">Screenshot</a> |||| <a href="http://webmail.versatel.nl/">versatel.nl</a> || 250,000 webmail || 5 x dual Xeon 3,2 Ghz 4GB running Apache, imapproxy and perdition on Debian Sarge || [mailto:<a href="https://wiki.horde.org/mailto:richard@versatel.nl">richard@versatel.nl</a> Richard Zuidhof] || Horde 3.0.x / IMP 4.1.x, ionCube |||| <a href="http://mail.umich.edu/blue">University of Michigan</a> || 113,000 || IMP / Horde: 5 x Dell Poweredge 1750 (dual 3.0GHz Xeon P4, 4GB RAM), 9 x SuperMicro 5013S-8 (dual 3.6Ghz Xeon P4, 4GB RAM);  MySQL: 2 x Western Scientific (dual 3.0Ghz Xeon P4, 4GB RAM, RAID 1+0) || [mailto:<a href="https://wiki.horde.org/mailto:liamr@umich.edu">liamr@umich.edu</a> Liam Hoekenga] || eAccelerator , Cyrus IMAP, UP-IMAPProxy, memcache based sessions |||| <a href="https://cubmail.cc.columbia.edu">Columbia University</a> || 85,000 || IMP / Horde: 9 x SunFire v240; Oracle: 1 x SunFire T2000; Cyrus Frontends: 12 x HP DL360; Cyrus Backends: 18 x HP DL360 pairs || [mailto:<a href="https://wiki.horde.org/mailto:selsky@columbia.edu">selsky@columbia.edu</a> Matt Selsky] || eAccelerator , Cyrus IMAP, UP-IMAPProxy |||| <a href="https://webmail.server.uni-frankfurt.de/horde/imp/login.php">University of Frankfurt</a> || 40,000 || [mailto:<a href="https://wiki.horde.org/mailto:mailadmin@uni-frankfurt.de">mailadmin@uni-frankfurt.de</a> Mail Support Team] || Established their <a href="https://webmail.server.uni-frankfurt.de/horde/wicked/">own Horde user guide wiki</a> ||  |||| <a href="https://webmail.hrz.uni-giessen.de/horde/">University of Giessen</a> || 30,000 || [mailto:<a href="https://wiki.horde.org/mailto:mail-support@hrz.uni-giessen.de">mail-support@hrz.uni-giessen.de</a> Mail Support Team] || Offer Roundcube and Squirrelmail as well ||  |||| <a href="http://www.ugent.be">Ghent University</a> || 30,000 || Debian Etch on some Sun machine ||  ||  |||| <a href="https://webmail.uni-wuppertal.de/login.php">University of Wuppertal</a> || 15,000 || Horde 4. <a href="http://www.zim.uni-wuppertal.de/aktuelles/ansicht/detail/02/februar/2012/artikel/webmail-besuche-erstmals-ueber-2-millionen.html">Deals with about 10.000 logins per day.</a> ||  ||  |||| <a href="http://www.tu-graz.ac.at">Graz University of Technology</a> || 13,000 || Horde 4, Sun Fire X4100 2x2.4 Ghz Dual-Core AMD Opteron, 4Gb Ram, 2x Sun Fire V20z 2x2200 Mhz AMD Opteron 4Gb Ram, 2 redundant Cisco loadbalancers CSS11503 with cyrpto-cards for SSL accelleration, 2x Sun X4600 4x3.0 Ghz Dual-Core AMD Opteron, 16Gb Ram for mySQL backends in Master-Master replication mode || [mailto:<a href="https://wiki.horde.org/mailto:webmail@tugraz.at">webmail@tugraz.at</a> webmail] || SSL is handled by the crypto card on the loadbalancer, PHP is accellerated by xcache, up-imapproxy |||| <a href="https://webmail.fas.harvard.edu/login/index.php?reason=login">Harvard University, Faculty of Arts and Sciences</a> || thousands || 4 Compaq Tru64 || <a href="https://wiki.horde.org/DeploymentHarvard">Details</a> ||  |||| <a href="https://mail.ph.utexas.edu">University of Texas at Austin, Department of Physics</a> || 1,000 || Dell Poweredge 2650 server, dual Xeon 3.0 Ghz,  1 GB memory, 2 S/W Raid1 volumes || [mailto:<a href="https://wiki.horde.org/mailto:eric.rostetter@physics.utexas.edu">eric.rostetter@physics.utexas.edu</a> Eric Rostetter] ||  |||| National Portuguese Government Agency || 1,000 || 8 Mail Servers (Exchange) and 1 Webmail Server (Apache/SSL) ||  ||  |||| <a href="http://www.linux-ag.com/">Linux Information Systems AG</a> || hundreds || [mailto:<a href="https://wiki.horde.org/mailto:m.rolke@linux-ag.com">m.rolke@linux-ag.com</a> Matthias Rolke] || We offer a customized horde groupware setup as a frontend for the Kolab Groupware that includes dimp, turba, kronolith, mnemo, nag and ingo. The complete backend consists of Kolab, OpenLDAP, postfix, Apache2 and sieve. <a href="http://www.linux-ag.com/res/CoreBiz_Groupware_Webclient_Screenhot.png">Screenshot</a> ||  |||| <a href="http://www.eecs.cwru.edu/mail/">Case Western Reserve University, EECS Department</a> || hundreds || 2 Sun X1 and 1 Sun V280R || [mailto:<a href="https://wiki.horde.org/mailto:sak8@eecs.cwru.edu">sak8@eecs.cwru.edu</a> Simon Kuhn] ||  |||| NYU School of Medicine ||  ||  ||  ||  |||| <a href="https://webmail2.alumnos.utfsm.cl">Universidad Tecnica Federico Santa Maria</a> ||  ||  ||  ||  |||| <a href="http://webmail.colorado.edu">University of Colorado at Boulder</a> || <a href="https://wiki.horde.org/DeploymentColorado">Details</a> ||  ||  ||  |||| <a href="https://www.mail.yale.edu">Yale University</a> ||  ||  ||  ||  |||| <a href="https://wiki.horde.org/DeploymentKarlWyant">More...</a> ||  ||  ||  ||  ||</table>